ntfs3: fix integer overflow in run_unpack() volume boundary check
The volume boundary check `lcn + len > sbi->used.bitmap.nbits` uses raw
addition which can wrap around for large lcn and len values, bypassing
the validation. Use check_add_overflow() as is already done for the
adjacent prev_lcn + dlcn and vcn64 + len checks added by commit
3ac37e100385 ("ntfs3: Fix integer overflow in run_unpack()").
Found by fuzzing with a source-patched harness (LibAFL + QEMU).
Analysis and contextual insights are available on OpenCVE Cloud.
No vendor fix or workaround currently provided.
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Mon, 01 Jun 2026 17:00:00 +0000
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Sat, 30 May 2026 13:45:00 +0000
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| Weaknesses | CWE-680 |
Sat, 30 May 2026 11:00:00 +0000
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| Metrics |
cvssV3_1
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Thu, 28 May 2026 00:15:00 +0000
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Wed, 27 May 2026 20:30:00 +0000
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| Weaknesses | CWE-190 CWE-680 |
Wed, 27 May 2026 14:15:00 +0000
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| Description | In the Linux kernel, the following vulnerability has been resolved: ntfs3: fix integer overflow in run_unpack() volume boundary check The volume boundary check `lcn + len > sbi->used.bitmap.nbits` uses raw addition which can wrap around for large lcn and len values, bypassing the validation. Use check_add_overflow() as is already done for the adjacent prev_lcn + dlcn and vcn64 + len checks added by commit 3ac37e100385 ("ntfs3: Fix integer overflow in run_unpack()"). Found by fuzzing with a source-patched harness (LibAFL + QEMU). | |
| Title | ntfs3: fix integer overflow in run_unpack() volume boundary check | |
| First Time appeared |
Linux
Linux linux Kernel |
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| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linux
Linux linux Kernel |
|
| References |
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Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-06-14T17:51:32.292Z
Reserved: 2026-05-13T15:03:33.095Z
Link: CVE-2026-46062
No data.
Status : Analyzed
Published: 2026-05-27T14:17:26.063
Modified: 2026-06-17T10:53:00.270
Link: CVE-2026-46062
OpenCVE Enrichment
Updated: 2026-05-30T14:45:25Z